An integrated Winix Smart App to control Winix Smart Air Purifiers has been released. Even if you do not allow optional permissions, you can still use the service limitedly. - Location (optional) : Needed to access your current outdoor air quality location. - Call (optional) : Needed to call customer service. (The Winix Samrt app never performs other functions using the above permission.) - Alexa lets you use your voice to control your Winix Air Purifier by speaking commands through an Alexa device. - Enable the Winix Smart Custom Skill for Alexa to learn all commands for your Winix Smart Air Purifier. Alexa Click here to enable the Winix Smart Custom Skill for Alexa to learn all commands or Alexa lets you use your voice to control your Winix Air Purifier by speaking commands through an Alexa device.